1. Joey realizes that he has charged too much on his credit card and has racked up $3000 in debt. If he can pay $150 each month and the card charges 18 percent APR (compounded monthly). how long will it take him to pay off the debt.
2. Explain why changing the discount rate may affect the ranking and profitability of alternative investments.
3. Under what conditions is it appropriate to use the payback period or simple rate of return methods?